When Alan and Sam are in Sam's apartment, Sam changes his shirt and he's seen shirtless for a few seconds.

Around 27:30, programs strip Sam to his underwear to put him in a suit. He's in the suit by 27:45.

When the transport Sam is on arrives at the arena, one of the programs who was on the same transport, kills himself by jumping down into a bunch of fan blades, getting Derezzed. (No blood, as he is a program and isn't a user like Sam)

Inside the Grid, "games" consist of video game-like disk-throwing and vehicle-racing competitions that always end with one competitor's death. Because the vanquished are programs, they do not die as real world humans do. Instead, their bodies shatter into thousands of tiny bits; this is called de-resolution, or de-rezzing for short.

A partially de-rezzed program has a large section of his face missing, leaving rough-edged pixelation running down from his eye.

During Clu's pursuit of Sam, Flynn, and Quorra, the fleeing trio manage to switch positions with one of their pursuers and subsequently fire on him from behind. One shot connects squarely with the hapless program's head, obliterating most of it.

One use of "Dammit!" Three uses of hell

A faint "shit" is heard when Flynn is hanging from a streetlight.

Sam opens up a beer and offers one to Alan.

At the End of Line Club, it is implied that the programs are drinking computer world equivalents to alcoholic beverages.

Clu cheats in a race by slitting another program's neck with his light disk. The victim screams, chokes, falls off his lightcycle, and de-rezzes.

The deresolution sequences can be frightening to some kids.