Tom Hanks fans are concerned for the actor's health after he was unable to control his shaking right hand while on stage earlier this month.
The Forrest Gump actor, 65, was promoting Baz Luhrmann's biopic of Elvis, in which he stars as the singer's manager.
The movie premiere was held in Sydney, Australia, where filming took place.
Standing on the stage in front of an audience, Tom began: "There is no better place in the world to make a motion picture than right here on the Gold Coast."
"I've shot films in Morocco and Los Angeles and New York City and Seattle and in Berlin," he continued, while holding the microphone in his right hand.
"None of them have what the Gold Coast have, and what is that? Two words. None of those other cities have Dan Murphy.
"What a man, who I got to know quite well."
Tom's hand was visibly shaking by this point, and he made an attempt for it to stop.
He placed his left hand underneath the microphone, before trying to switch hands completely.
The award-winning Hollywood star concluded: "We had an absolutely magnificent time with you all.
"There is something about the people and the place of the Gold Coast that makes everyone walk around with a confident look on their face. We were a part of that.
"Your confidence, joy and zest for life comes through in our motion picture.
"You have a wonderful proactive golden son in Baz Luhrmann who loves Australia more than kangaroos, more than Dan Murphy."
Fans have started to speculate about Tom's health on social media after the video clip went viral.
Over on Twitter, one person wrote: "God forbid it could just be adrenaline and nerves!"
A second concerned fan added: "I love Tom Hanks. Saw him on screen recently and thought he looked very thin. Hope he's ok."
"He does seem like he has aged all of a sudden - lost weight," a third commented.
A fourth suggested: "Unfortunately his declining health points to possibly Parkinson's."
And a fifth wrote: "He's diabetic. This happens to my mom when she gets low blood sugar."
In 2020, Tom revealed his "bone-crushing" battle with Covid.
The Hollywood star and his wife Rita Wilson recovered from the deadly bug after they were struck down with it in March of that year.
Appearing virtually on The Late Show, Tom explained that he experienced "very different" symptoms to his wife despite the pair both testing positive.
The star said: "We had no idea how it could have happened, where it could have happened."
He added: "Everytime I moved around I felt like something was cracking inside me," he said, before adding that he also experienced "bone-crushing fatigue".
The father-of-four said he "had some body aches and was very fatigued".
In fact, he was so weak he "wiped" out 12 minutes into a 30-minute simple work-out.
Two-times Oscar winner Tom is most famous for appearing in films such as Saving Private Ryan, Toy Story and Forrest Gump.
The Mirror has contacted Tom's representative for a comment.
Do you have a story to sell? Get in touch with us at webcelebs@mirror.co.uk or call us direct at 0207 29 33033.
