From the first shot—a closeup that uncomfortably reveals Segel’s aging-adolescent complexion—the film gets sweatily close to the actors, poignantly highlighting the characters’ self-centered confusion and quietly frantic urgency.

It's a whimsical comedy and, as far as whimsical comedies go, it is quite whimsical, and sometimes comedic, which is fair enough, but ultimately it is slight and repetitive and nothing sticks in the mind.

The entire action of the film, right up to its final revelation, could be played as a dead straight, emotionally choked drama of the cosmic supernatural.

Audiences are bound to fall for Segel’s teddy bear sweetness and the genial way the characters manage to work out their problems.