Biel confirmed her engagement to Justin Timberlake in July and later said that she had done "almost nothing" to plan the ceremony.
The actress has now told E! Online that she is not a "bridezilla".
"I'm just pretty much cool as a cucumber in general in my life," she said. "So no, I'm cool."
Timberlake and Biel were previously rumoured to be getting married in Wyoming and Montana, but later reports suggested that they were still in the early stages of planning their wedding.
Meanwhile, Timberlake reportedly celebrated his bachelor party with a Rat Pack-themed event in Las Vegas last month.
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