After Alba graduated from high school, she studied acting with William H. Macy and his wife, Felicity Huffman, at the Atlantic Theater Company, which was developed by Macy and Pulitzer Prize-winning playwright and film director, David Mamet.
Efter Alba var færdig med high school, studerede hun skuespil hos William H. Macy og hans kone Felicity Huffman ved Atlantic Theater Company, udviklet af Macy og den Pulitzer Prize-vindende dramatiker og filminstruktør, David Mamet.