Old Lady (Demon?) Screams at Young Woman in Supermarket

by Kumo
(Portugal)

I saw the trailer of a film on tv in 2009, but didn't get the film's name.

In the trailer, there's one young woman in a supermarket and an old lady starts talking to her. The young woman scares herself and the old lady freaks out and falls into the ground and starts yelling something like: 'you embarassed me, you'll pay'. I think the old lady is actually a demon and haunts the young woman.

I'll be thankful for someone's answer.