it has a creature called headcrabs in it

A controversial short film that was commissioned by Havas Interactive and Cendant Software, and produced by British marketing agency Cruise Control, to promote the UK release of Sierra On-Line and Valve Software's debut videogame "Half-Life".

As troubling signs of global cataclysms accelerate, a brother and sister react to their father's desertion and the powerful presence of their mother's new boyfriend.

Our Hero is accused of a crime he didn't commit. Once again, he breaks jail to find the real culprits. And once again, he dons his Durango Kid disguise, whereupon stunt-double Jock Mahoney swings into action. Outcasts of Black Mesa is distinguished by the presence of a relative newcomer to the film game, leading lady Martha Hyer.

NoClip talk to Crowbar Collective about their 16 year journey rebuilding the original Half-Life.

A series of mysterious deaths lead a detective and two FBI agents to an illegal toxic waste dump in a seaside community. With the help of a marine scientist, they discover that over time, local crabs have become contaminated and have grown larger in size. An attack of mutated gigantic crabs occur as the threat of further havoc and destruction takes place. Will this menace be stopped as more people die? Can these creatures be destroyed in time before their population explodes?