Legally Blonde 3 could not happen without the participation of one returning star, affirms Reese Witherspoon. Witherspoon originated the role of Elle Woods in 2002's Legally Blonde, an adaptation of the Amanda Brown novel of the same name, which was followed by 2003's Legally Blonde 2: Red, White & Blonde, the spinoff Legally Blondes, and a Broadway musical adaptation. The hotly anticipated Legally Blonde 3 was announced in 2018, but the pandemic shutting down theaters and the 2020 revelation that the script was being retooled by Mindy Kaling and Dan Goor have caused significant delays.
https://screenrant.com/legally-blonde-3-jennifer-coolidge-return-witherspoon-promise/