Skip to content

Featured Popular Top Rated Upcoming Now Playing

Featured Popular Top Rated Airing Today On The Air

Action Adventure Animation Comedy Crime Documentary Drama Family Fantasy History Horror Music Mystery Romance Science Fiction TV Movie Thriller War

Search movies and TV series

Search movies and TV series

Featured Popular Top Rated Upcoming Now Playing

Featured Popular Top Rated Airing Today On The Air

Action Adventure Animation Comedy Crime Documentary Drama Family Fantasy History Horror Music Mystery Romance Science Fiction TV Movie Thriller War

Every movie and series, one place to find it.

Search movies and TV series

Loading content…

Discover where to watch movies and TV series online. Browse trending titles, streaming availability, ratings, trailers, cast and full episode guides — all in one place.

Movies

Featured
Popular
Top Rated
Upcoming
Now Playing

TV Series

Featured
Popular
Top Rated
Airing Today
On The Air

Discover

Trending
Free to Watch
Browse Genres
Search

© 2026 Watch Free Online Movies. All rights reserved.

This product uses the TMDB API but is not endorsed or certified by TMDB. Watch Free Online Movies does not host or stream any media — it links to where titles are legally available.

Loading title details…

Ben 10: Alien Swarm poster

Ben 10: Alien Swarm(2009)

PGNovember 15, 20091h 9m

Action TV Movie Science Fiction

62%User score 62 percent

User Score

394 votes

Go hero one more time!

Overview

Ben and a mysterious girl from his past must prevent an alien threat from destroying the world.

Director: Alex Winter
Writers: Jim Krieg, John Turman

Top Billed Cast

Ryan Kelley
Ben Tennyson
Galadriel Stineman
Gwen Tennyson
Nathan Keyes
Kevin E. Levin
Alyssa Diaz
Elena Validus

More Like This

Recommendations based on this film

59%User score 59 percent

Ben 10: Race Against Time

2008 · Action · Family

67%User score 67 percent

Ben 10: Destroy All Aliens

2012 · Animation · Science Fiction

75%User score 75 percent

Ben 10 vs. the Universe: The Movie

2020 · Animation · Action

72%User score 72 percent

Ben 10 / Generator Rex: Heroes United

2011 · Action · Animation

75%User score 75 percent

Ben 10: Secret of the Omnitrix

2007 · Animation · Science Fiction

73%User score 73 percent

Rise of the Teenage Mutant Ninja Turtles: The Movie

2022 · Animation · Action

71%User score 71 percent

Superman: Man of Tomorrow

2020 · Animation · Action

80%User score 80 percent

Transformers Prime: Beast Hunters - Predacons Rising

2013 · Action · Animation

69%User score 69 percent

Green Lantern: First Flight

2009 · Action · Adventure

69%User score 69 percent

Ultimate Avengers: The Movie

2006 · Action · Animation

76%User score 76 percent

Batman and Superman: Battle of the Super Sons

2022 · Animation · Action

66%User score 66 percent

Titan A.E.

2000 · Animation · Science Fiction

67%User score 67 percent

Green Lantern: Beware My Power

2022 · Animation · Science Fiction

64%User score 64 percent

Marvel Rising: Secret Warriors

2018 · Family · Animation

66%User score 66 percent

JLA Adventures: Trapped in Time

2014 · Family · Animation

67%User score 67 percent

Kim Possible: A Sitch in Time

2003 · TV Movie · Action

67%User score 67 percent

Hulk: Where Monsters Dwell

2016 · Action · Animation

60%User score 60 percent

Mutant Pumpkins from Outer Space

2009 · TV Movie · Animation

65%User score 65 percent

Men in Black 3

2012 · Action · Comedy

66%User score 66 percent

Green Lantern: Emerald Knights

2011 · Action · Adventure

Ben 10: Alien Swarm (2009) | Watch Free Online Movies

Herbert Siguenza

Victor Validus

Barry Corbin

Grandpa Max Tennyson

Dee Bradley Baker

Big Chill / Humongousaur (voice)

Alex Winter

Nanomech (voice)

Wendy Cutler

Alien Chip Queen (voice)

Patrick Cox

Big Ed

Eric Mendenhall

Fitz

Aaron Muñoz

Psycho 1

Justin Welborn

Psycho 2

Wilbur Fitzgerald

Financial Guy in Suit

Jevocas Green

Assembly Line Zombie

Lynn McArthur

Waitress Zombie (uncredited)

Katherine Neslund

Zombie Assembly Line Worker

Bill Pacer

Factory Worker Zombie (uncredited)

Timothy Douglas Perez

Forklift Operator (uncredited)

Steve Warren

Factory Worker Zombie

Media

Where to Watch

No streaming options are listed for US right now. Availability changes often — check back soon.

Facts

Status: Released
Original title: Ben 10: Alien Swarm
Original language: English
Budget: $40,000,000
Production: Cartoon Network Studios, Trouper, Man of Action Entertainment

Keywords

extraterrestrial technology
transformation
alien
based on cartoon
alien race
teen superhero
nanobots
based on tv series
cgi-live action hybrid