A perfect example is And Now… Ladies and Gentlemen (2002). It’s a romantic thriller, with a bunch of dream sequences and one of the main themes is that love is a dream. One of the most romantic films I’ve seen in a long time, a perfect date movie, since it’s also a heist flick. Watch for this to come out on DVD! French w. English subtitles.
Swimming Pool (2003) It would be a spoiler to explain why.
Always has both dream-like aftelife sequences and waking-dream sequences.
While watching Solaris (2002) in the theater, I kind of felt like I was in a dreamlike state.
A Walk in the Clouds (1995) has a romantic, dreamlike atmosphere, the title is very apt.
The Crow definitely has a nightmarish tone.