Comedy movie about a british guy helping a spy

A failed double agent becomes an unlikely success.

When an underachieving single father inadvertently becomes an MI5 agent, he must keep his government job a secret while battling his ex-wife for custody of their precocious son.

Two Americans in England--a wealthy playboy and an actress--join forces to stop international spies.

A British Sanitary Engineer, goes on holiday with a set of plans for a new secret weapon which he has mistaken for his new plumbing invention. Everyone is hunting for him, including the Russians. The Russians find him and offer him a job in the Kremlin doing research (on plumbing he believes). He accepts, arrives in Russia and falls in love with Tania, a secret agent. And then discovers the true nature of the plans he is carrying...

After a failed mission in the Arctic, spies must team up to foil a deadly plot orchestrated by Evelina, an international assassin and head of the world's worst crime syndicate.

A CIA operative on a dangerous mission gets his cover blown while attending a friend's wedding in Europe and enlists his pals to help him escape.

A young American broker at large in London.