Lovelorn losers are tiresome themes. And Cage's character, slowly plodding to bliss is annoyingly predictable. The collision of stories and characters may be very original, but that doesn't necessarily mean that it keeps the viewer interested or awake. The constant use of flashbacks is very annoying. By the fourth one, who cares. The first 5 minutes of the characters self-castigating prologue and the last 10 minutes of the movie is the entire movie. All the stuff in the middle is simply tedium.
Cage at his age in this movie looks uncannily like Gene Wilder.