Happy Go Lovely

Happy Go Lovely is a 1951 British musical comedy film with Technicolor, directed by H. Bruce Humberstone and starring Vera Ellen, David Niven, and Cesar Romero. The film was made and first released in the UK, and distributed in the US by RKO Radio Pictures in 1952.

When Bruno receives the bill, he goes to the theatre to investigate. Janet mistakes him for reporter Paul Tracy, who was supposed to interview her. Finding Janet very attractive, Bruno does not correct her error. The two fall in love. Bruno amuses himself by continually asking Janet about her relationship with the millionaire.Finally, Bruno gives Frost a check for 10,000. When Janet finds out, however, she confesses everything. On the opening night of Frolics to You, Bruno takes a box seat. Frost summons the police to have him arrested. Janet tries to make Paul Tracy hide or leave, in between performing on stage. During these hectic proceedings, Janet blurts out that she loves him. The police catch Bruno, but the inspector in charge recognizes him, much to Janet and Frosts shock, and all ends well. ........

Source: Wikipedia