Old British comedy

[sksvlad]

I saw this either British or French comedy in the USSR in early 70's. I do not remember it's title. All I remember is that a group of British rugby fans go to Paris to cheer their team, during the match one of them gets kicked in the mouth and requires dentist's help. The dentist fixes his teeth but tells him not to open his mouth for a day. He walks out of the office into a mafia shoot-out during which he is mistaken for a gangster. Things go heywire and everything hinges on the fact that he is not allowed to open his mouth. May anyone tell me this film's name, please?

[GRAEME]

Grand Slam (1978) ?

[vetchbook]

it's definately not Grand Slam, as I watched this telly film fairly recently.

[sksvlad]

I got an answer from a different forum, it is called "Allez France"(1964).