There are scenes that contain German, if you don't SPEAK German, you miss out on some details. Surprisingly I turned on the ENGLISH subtitles (like for hearing impaired?) and when it got to those parts, BAM translations! There should be automatic English subtitles during those scenes, but this works if you know the trick.
Now onto the movie. Matt LeBlanc, I just personally don't think he's that good. He's 'Joey' from Friends, that's kind of the limit of his acting versatility IMHO. He's not horrible, just not a lot of depth.
Eddie Izzard SHOULD have been listed as the starring role in this, not LeBlanc. He totally OWNS this movie. I would watch this with the sound off just to watch how accurately he seems to be able to portray a female. Elegant, witty, believable and very entertaining.
The storyline is simple, the script is lame and LeBlanc is just eye candy. It's worth watching if you are an Izzard fan.
I also recommend to Izzard fans:
UNITED STATES OF TARA he did several episodes
VELVET GOLDMINE
THE RICHES (there is only 1 season and it does rudely just drop off and die, but acting is great, story is compelling)
Worth purchasing if you're an Izzard fan.