Is this Robert Pattinson's new girlfriend? The actor was spotted with a mystery woman in California Saturday. Star Xtreme

Following months of reports that "Twilight" co-stars turned off-screen lovers Robert Pattinson and Kristen Stewart had officially moved on, photographers captured the actor spending time with a Stewart look-alike this weekend, prompting fans to question: Could the famous duo be back together?

After the 27-year-old was spotted driving in Los Feliz, Calif., Saturday with what appeared to be Stewart, 23, the possibility of the formerly famous couple reigniting their romance seemed plausible. Unfortunately for supporters of the duo, the reports were deemed false, with the Daily Mail confirming the mystery woman was merely a Stewart look-alike.

Pattinson and his rumored new leading lady were reportedly spotted buying a tennis table, with the duo sitting side by side following the purchase in the actor's pick-up truck. While the mystery female has yet to be identified, she is described as having wavy and shoulder-length red hair, a hairstyle similar to the 'do Stewart was seen sporting at Los Angeles International Airport Sunday.

Pattinson was previously rumored to be dating pop singer Katy Perry, 28, following his split with his longtime co-star. The famous duo was seen crashing a wedding celebration in Montecito, Calif., over Memorial Day weekend. According to People magazine, family and friends of the bride and groom celebrating their big day witnessed the twosome sneaking in to view the couple's wedding rehearsal.

While Pattinson and Perry appear to no longer be an item, a source told E! News in May that the "Teenage Dream" singer was partly responsible for the "Twilight" stars' split. "[She] played a role as one of many reasons," said the source, who said the duo ultimately ended their five-year romance due to an issue over "priorities."