Cover of Spalding Gray’s performance notebook for ‘Swimming to Cambodia.’

During the initial staff inspection of Spalding Gray’s papers at the Ransom Center some weeks ago, when each shipping carton was opened and its contents checked for condition, I passed my hands over multiple audio tapes, notebooks, and other documents marked with the single word “Swimming.” It had been around 20 years since I had seen Gray’s critically acclaimed and influential film Swimming to Cambodia, and I decided it was time for a refresher viewing.

Released in 1987, Swimming was the first of Gray’s stage monologues to be adapted for the screen, and hence to reach a mass audience. In it, Gray tells the partly scripted, partly improvised story of his experience…