Jennifer Garner and Ben Affleck debut son Samuel on Independence Day

Jennifer Garner and husband Ben Affleck welcomed baby No. 3, Samuel Garner Affleck, on Feb. 27, and on Wednesday (July 4), the little guy finally made his public debut in Los Angeles.

Us Weekly reports that the family of five -- including Samuel's big sisters, Violet, 6, and Seraphina, 3 -- celebrated Independence Day with a party in Pacific Palisades and a parade and street fair in Santa Monica. (Click through to Us Weekly for more pics.)

While Garner is happy in her role as mom of three, it sounds like she's also ready to slip back into her role as actress.

While accepting the Female Star of the Year award at CinemaCon in April, she thanked Affleck for "for taking over drop-offs and pickups and bedtime so I could make it [to the event]. And thanks for making me feel like maybe someday I will get to relax in a hair and makeup chair again and leave the maniacs at home with you."