For families: “Our Friend Martin” movie screening, 7 p.m., Clayton County Library, Riverdale. FREE.

For kids: “Rainforest Adventures” continues, 10 a.m. and 11:30 a.m., The Center for Puppetry Arts, Atlanta.

Forum: “This I Believe” discussion, 6 p.m., Spelman College’s Cosby Auditorium, Atlanta. FREE.

Music: Mariah Carey performs, 8 p.m., Fox Theatre, Atlanta.

Sports: Atlanta Thrashers vs. Toronto Maple Leafs, 7 p.m., Philips Arena, Atlanta.

Sports: Georgia Tech men’s basketball vs. Clemson, 7 p.m., Alexander Memorial Coliseum, Atlanta.

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