Dumbbells in Ermine is a 1930 American early talkie pre-Code comedy film based on the 1925 play Weak Sisters by Lynn Starling.

The film stars Robert Armstrong and Barbara Kent, and features Beryl Mercer, James Gleason, and Claude Gillingwater.

[1] In a small town in Virginia, Barbara Kent, is being forced into a marriage with a missionary reformer by her socially prominent parents.

When the missionary invites some weak sisters to a revival meeting one of them, a showgirl, accuses him of being responsible for her downfall.

Gleason helps Armstrong become reconciled with Kent and they marry with the blessings of the family.