Disclosing thoughts and feelings about emotional events has some physical health benefits. To address the disclosure-health link, the current study aimed to examine whether disclosure about an emotional stimulus leads to physiological habituation when re-exposed to the stimulus. Heart rate, systolic and diastolic blood pressure, skin conductance level (SCL), respiratory sinus arrhythmia, and peripheral resistance were assessed during the viewing of an emotionally evocative film clip, and during re-exposure to the clip after participants wrote about either their emotions regarding the movie clip (emotional disclosure), or plans for the day (trivial disclosure). Physiologically, the film did not elicit a strong response, little habituation was observed, and no differences existed between emotional and trivial disclosers during the second film viewing. However, higher SCL for trivial disclosers during the second viewing relative to the first was observed. Together, findings warrant improved methodology to adequately address physiological habituation in the disclosure-health link.