LATEST: Lindsay Lohan has returned to work on the set of GEORGIA RULES in Los Angeles, after collapsing from heatstroke and exhaustion on Wednesday (26JUL06). The 20-year-old actress had been working for 12 hours in the intense heat and was taken to a local hospital for treatment before being released. The Mean Girls star was spotted out the night before with pal Nicole Richie singing karaoke at West Hollywood nightclub Guy's. And hours after being treated for overheating and dehydration, Lohan was spotted having dinner at West Hollywood restaurant Il Sole on the Sunset Strip. She reported to the film set on Thursday (27JUL06) on time. A representative for the film, which also stars Jane Fonda and Felicity Huffman tells MTV News, "We're hoping she remains on schedule for the rest of production."