When Momo is ca. in his 3rd semester, he's having a party where the song "Anti Anti" by Bonaparte is played. Momo having graduated in 2001 (as his car sticker says) and then left for university, it must be the Year 2002 or 2003. Bonaparte only formed in 2006. Not very much later in the movie, he even attends a show of theirs. Here, the band are wearing the costumes of their "Circus Show", which according to their website has first been performed in 2007.