Concerts
Beaux Arts Trio--Menahem Pressler,piano; Isidore Cohen, violin; Peter Wiley,violin/cello present Mozart's Trio in G Major,Beethoven's Trio in D Major, and Mendelssoh's Trioin C minor. Sanders Theatre, 8 p.m. $20, $19, $17,and $15 general; $8 for students and seniors. Call495-1700 for tickets.
Films
Harvard Film Archives--presents Troublein Paradise at 5:15 p.m., Super Fly at 7 p.m. andThe Second Circle at 9:15 p.m.
Lectures
Dieting and the Control of Body Weight:Where Physiology and Culture Collide--by KellyBrownell, Yale University. William James Hall I,4:10 p.m.
Jorge Gamboa de Buen--by Jorge Buen,architect and chief city planner, Mexico City.Gund Hall, Piper Auditorium, 6 p.m.
Lecture IV: Magneto-Optical Trapping ofMetastable Helium: The (Good and Bad) Role ofCollisions--by Alain Aspect, Morris LoebLecturer on Physics, Institut d'Optique Theoriqueet Apliquee. Jefferson Hall, Room 356, 3 p.m.
Theatre
Seagull--Through March 21. By AntonChekhov, directed by Ron Daniels. AmericanRepertory Theatre, 64 Brattle Street, 8 p.m. Call547-8300 for tickets